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      Laravel Validator自定义参数验证规则
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        <h2 id="自定义参数验证规则"><a href="#自定义参数验证规则" class="headerlink" title="自定义参数验证规则"></a>自定义参数验证规则</h2><p><code>public Validator make(array $data, array $rules, array $messages = [], array $attributes = [])</code></p>
<p><strong>参数说明</strong></p>
<ul>
<li><code>$data</code>是要验证的数据,即 <code>$request-&gt;all()  | $request-&gt;input() | Request::all()</code></li>
<li><code>$rules</code>是验证的规则</li>
<li><code>$messages</code>是提示信息，自定义<code>rules</code>中的规则信息</li>
<li><code>$attributes</code>是设置属性别名</li>
</ul>
<blockquote>
<p>使用方法和流程见示例</p>
</blockquote>
<a id="more"></a>
<figure class="highlight php"><table><tr><td class="gutter"><pre><div class="line">1</div><div class="line">2</div><div class="line">3</div><div class="line">4</div><div class="line">5</div><div class="line">6</div><div class="line">7</div><div class="line">8</div><div class="line">9</div><div class="line">10</div><div class="line">11</div><div class="line">12</div><div class="line">13</div><div class="line">14</div><div class="line">15</div><div class="line">16</div><div class="line">17</div><div class="line">18</div><div class="line">19</div><div class="line">20</div><div class="line">21</div><div class="line">22</div><div class="line">23</div><div class="line">24</div><div class="line">25</div><div class="line">26</div><div class="line">27</div></pre></td><td class="code"><pre><div class="line"><span class="keyword">use</span> <span class="title">Illuminate</span>\<span class="title">Http</span>\<span class="title">Request</span>;</div><div class="line"><span class="keyword">public</span> <span class="function"><span class="keyword">function</span> <span class="title">index</span><span class="params">(Request $request)</span></span></div><div class="line"><span class="function"></span>&#123;</div><div class="line">    $data = $request-&gt;input();</div><div class="line">    $rules = [</div><div class="line">        <span class="string">'id'</span>    =&gt; <span class="string">'required|numeric'</span>,</div><div class="line">        <span class="string">'age'</span>   =&gt; <span class="string">'required|numeric|max:150'</span>,</div><div class="line">        <span class="string">'name'</span>  =&gt; <span class="string">'sometimes|max:20'</span>,  <span class="comment">//sometimes的用意（不传则已，传则必须遵守规则）</span></div><div class="line">    ];</div><div class="line">    $messages = [</div><div class="line">        <span class="string">'required'</span>  =&gt; <span class="string">':attribute不能为空'</span>,</div><div class="line">        <span class="string">'numeric'</span>   =&gt; <span class="string">':attribute必须是数字'</span>,</div><div class="line">        <span class="string">'max'</span>       =&gt; <span class="string">':attribute长度（数值）不应该大于 :max'</span>,</div><div class="line">    ];</div><div class="line">    $attributes = [</div><div class="line">        <span class="string">'id'</span>    =&gt; <span class="string">'ID'</span>,</div><div class="line">        <span class="string">'age'</span>   =&gt; <span class="string">'年龄'</span>,</div><div class="line">        <span class="string">'name'</span>  =&gt; <span class="string">'名称'</span>,</div><div class="line">    ];</div><div class="line">    $validator = \Validator::make($data, $rules, $messages, $attributes);</div><div class="line">    <span class="keyword">if</span> ($validator-&gt;fails()) &#123;</div><div class="line">        <span class="keyword">return</span> $validator-&gt;errors()-&gt;all();         <span class="comment">//显示所有错误组成的数组</span></div><div class="line">        <span class="comment">//return $validator-&gt;errors()-&gt;first();     //显示第一条错误</span></div><div class="line">    &#125; <span class="keyword">else</span> &#123;</div><div class="line">        <span class="keyword">return</span> <span class="string">'validate passed'</span>;</div><div class="line">    &#125;</div><div class="line">&#125;</div></pre></td></tr></table></figure>
<blockquote>
<p>上面的messages和attributes都是在使用处自定义设置，有种方法是按照语言在配置文件中定义</p>
</blockquote>
<ol>
<li>修改config/app.php里面的locale为ch</li>
<li>新建 lang/ch/validation.php 文件</li>
<li>修改validation.php文件，可将提示信息修改为中文，attributes是设置属性别名。</li>
</ol>
<p>另外custom是完全自定义<br><code>Here you may specify custom validation messages for attributes using the convention &quot;attribute.rule&quot; to name the lines. This makes it quick to specify a specific custom language line for a given attribute rule.</code><br><figure class="highlight dart"><table><tr><td class="gutter"><pre><div class="line">1</div><div class="line">2</div><div class="line">3</div><div class="line">4</div><div class="line">5</div></pre></td><td class="code"><pre><div class="line"><span class="string">'custom'</span> =&gt; [</div><div class="line">    <span class="string">'age'</span> =&gt; [</div><div class="line">        <span class="string">'required'</span> =&gt; <span class="string">'年龄必须存在'</span>,</div><div class="line">    ],</div><div class="line">],</div></pre></td></tr></table></figure></p>

      
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